Differentiated Science classroom

    

     I teach 7th grade Life Science in Harrisburg Pennsylvania and I have a dilemma. We moved to full inclusion this year, so I teach heterogeneously mixed classes of 26 students. In my classes I have a child with Downs syndrome, and several students with MR IEPs mixed in with regular ed kids and kids with gifted IEPs. I am looking for sources or suggestions on how to meet the needs of all my students. I know that I need to differentiate my lessons, and that is where I need help/guidance. Any suggestions would be greatly appreciated.